{"id":"CVE-2022-41082","aliases":["EUVD-2022-44326","GHSA-cg2v-9v73-ccwp"],"status":"published","title":"Microsoft Exchange Server Remote Code Execution Vulnerability","description":"Microsoft Exchange Server Remote Code Execution Vulnerability","severity":{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.9997,"percentile":0.99978,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-502"],"published":"2022-10-03T00:00:00Z","modified":"2026-06-17T05:02:33Z","kev":{"date_added":"2022-09-30","due_date":"2022-10-21","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"exploitation":[{"source":"euvd","since":"2022-09-30"},{"source":"kev","since":"2022-09-30"}],"exploits":[{"source":"metasploit","id":"exploit/windows/http/exchange_proxynotshell_rce","title":"Microsoft Exchange ProxyNotShell 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server"},{"vendor":"microsoft","product":"exchange_server"},{"vendor":"microsoft","product":"microsoft exchange server 2013 cumulative update 23"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 22"},{"vendor":"microsoft","product":"microsoft exchange server 2016 cumulative update 23"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 11"},{"vendor":"microsoft","product":"microsoft exchange server 2019 cumulative update 12"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41082","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://www.vicarius.io/vsociety/posts/cve-2022-41082-microsoft-exchange-server-remote-code-execution-vulnerability-detection-script","tags":["Third Party Advisory"]},{"url":"https://www.vicarius.io/vsociety/posts/cve-2022-41082-microsoft-exchange-server-remote-code-execution-vulnerability-mitigation-script","tags":["Third Party Advisory"]},{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41082","tags":["x_transferred","Patch","Vendor Advisory"]},{"url":"https://www.kb.cert.org/vuls/id/915563","tags":["third-party-advisory","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"http://packetstormsecurity.com/files/170066/Microsoft-Exchange-ProxyNotShell-Remote-Code-Execution.html","tags":["x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.secpod.com/blog/microsoft-november-2022-patch-tuesday-patches-65-vulnerabilities-including-6-zero-days/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41082","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-41082"},{"url":"https://www.secpod.com/blog/microsoft-november-2022-patch-tuesday-patches-65-vulnerabilities-including-6-zero-days"},{"url":"https://github.com/advisories/GHSA-cg2v-9v73-ccwp"}],"sources":{"cve":[{"id":"CVE-2022-41082","title":"Microsoft Exchange Server Remote Code Execution Vulnerability","description":"Microsoft Exchange Server Remote Code Execution Vulnerability","status":"published","published":"2022-10-03T00:00:00Z","modified":"2025-10-21T23:15:33.797Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:34:28.038197Z"}],"euvd":[{"id":"EUVD-2022-44326","description":"Microsoft Exchange Server Remote Code Execution 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Dubbed \"ProxyNotShell,\" this vulnerability is chainable with CVE-2022-41040 which allows for the remote code execution.","cwes":["CWE-502"],"kev":{"date_added":"2022-09-30","due_date":"2022-10-21","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Known"},"updated_at":"2026-11-02T17:00:16.234141Z"}],"nvd":[{"id":"CVE-2022-41082","description":"Microsoft Exchange Server Remote Code Execution Vulnerability","status":"published","published":"2022-10-03T01:15:08.843Z","modified":"2026-06-17T05:02:33.46Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:07:29.026521Z"}]}}